# fputs

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< c‎ | io

Defined in header ``<stdio.h>`` |  |
int fputs( const char* str, FILE* stream ); |  | (until C99)
int fputs( const char* restrict str, FILE* restrict stream ); |  | (since C99)

Writes every character from the null-terminated string str to the output stream stream, as if by repeatedly executing fputc.

The terminating null character from str is not written.

### Parameters

str | - | null-terminated character string to be written
stream | - | output stream

### Return value

On success, returns a non-negative value.

On failure, returns EOF and sets the error indicator (see ferror()) on stream.

### Notes

The related function puts appends a newline character to the output, while `fputs` writes the string unmodified.

Different implementations return different non-negative numbers: some return the last character written, some return the number of characters written (or INT_MAX if the string was longer than that), some simply return a non-negative constant such as zero.

### Example

Run this code

    #include <stdio.h>

    int main(void)
    {
        int rc = fputs("Hello World", stdout);

        if (rc == EOF)
           perror("fputs()"); // POSIX requires that errno is set
    }

Output:

    Hello World

### References

- C23 standard (ISO/IEC 9899:2024):

  - 7.21.7.4 The fputs function (p: TBD)

- C17 standard (ISO/IEC 9899:2018):

  - 7.21.7.4 The fputs function (p: TBD)

- C11 standard (ISO/IEC 9899:2011):

  - 7.21.7.4 The fputs function (p: 331-332)

- C99 standard (ISO/IEC 9899:1999):

  - 7.19.7.4 The fputs function (p: 297)

- C89/C90 standard (ISO/IEC 9899:1990):

  - 4.9.7.4 The fputs function

### See also

printffprintfsprintfsnprintfprintf_sfprintf_ssprintf_ssnprintf_s (C99)(C11)(C11)(C11)(C11) | prints formatted output to stdout, a file stream or a buffer (function)
puts | writes a character string to stdout (function)
fgets | gets a character string from a file stream (function)
C++ documentation for fputs

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